<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>数据统计</el-breadcrumb-item>
            <el-breadcrumb-item>数据报表</el-breadcrumb-item>
        </el-breadcrumb>
        <el-card>

            <!-- 1.准备图标盒子 -->
            <div id="main" style="width: 750px;height:400px;"></div>
        </el-card>
    </div>
</template>

<script>
    import * as echarts from 'echarts'
    import _ from 'lodash'
    export default {
        data() {
            return {
                //需要合并的数据项目，鼠标跟随的一些
                options: {
                    title: {
                        text: '用户来源'
                    },
                    tooltip: {
                        trigger: 'axis',
                        axisPointer: {
                            type: 'cross',
                            label: {
                                backgroundColor: '#E9EEF3'
                            }
                        }
                    },
                    grid: {
                        left: '3%',
                        right: '4%',
                        bottom: '3%',
                        containLabel: true
                    },
                    xAxis: [
                        {
                            boundaryGap: false
                        }
                    ],
                    yAxis: [
                        {
                            type: 'value'
                        }
                    ]
                }
            }
        },
        created() {

        },
        //dom初始化完毕，初始化图标
        async mounted() {

            const { data: res } = await this.$http.get('reports/type/1')
            if (res.meta.status !== 200) return this.$message.error('获取图线数据失败')

            // 2. 创建实例 并 指定图表的配置项和数据
            var myChart = echarts.init(document.getElementById('main'));
            //数据合并，加上提示
            const result = _.merge(res.data, this.options)

            //3. 使用刚指定的配置项和数据显示图表。
            myChart.setOption(result);
        },
        methods: {

        }
    }
</script>

<style lang="less" scoped>

</style>